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Title: Fully automated peptide radiolabeling from [ 18 F]fluoride

Abstract

The biological properties of receptor-targeted peptides have made them popular diagnostic imaging and therapeutic agents. Typically, the synthesis of fluorine-18 radiolabeled receptor-targeted peptides for positron emission tomography (PET) imaging is a time consuming, complex, multi-step synthetic process that is highly variable based on the peptide. The complexity associated with the radiolabeling route and lack of robust automated protocols can hinder translation into the clinic. A fully automated batch production to radiolabel three peptides (YGGFL, cRGDyK, and Pyr-QKLGNQWAVGHLM) from fluorine-18 using the ELIXYS FLEX/CHEM® radiosynthesizer in a two-step process is described. First, the prosthetic group, 6-[18F]fluoronicotinyl-2,3,5,6-tetrafluorophenyl ester ([18F]FPy-TFP) was synthesized and subsequently attached to the peptide. The [18F]FPy-peptides were synthesized in 13–26% decay corrected yields from fluorine-18 with high molar activity 1–5 Ci μmol-1 and radiochemical purity of >99% in an overall synthesis time of 97 ± 3 minutes.

Authors:
ORCiD logo [1];  [2];  [3];  [2]; ORCiD logo [1]
  1. Department of Internal Medicine, Division of Hematology and Oncology, University of California, Davis, USA
  2. Sofie Co., Culver City, USA
  3. Department of Biomedical Engineering, University of California, Davis, USA
Publication Date:
Research Org.:
Univ. of California, Davis, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Cancer Inst.; National Inst. of Mental Health; National Inst. of Biomedical Imaging and Bioengineering
OSTI Identifier:
1500134
Alternate Identifier(s):
OSTI ID: 1611038
Grant/Contract Number:  
SC0008385
Resource Type:
Published Article
Journal Name:
RSC Advances
Additional Journal Information:
Journal Name: RSC Advances Journal Volume: 9 Journal Issue: 15; Journal ID: ISSN 2046-2069
Publisher:
Royal Society of Chemistry
Country of Publication:
United Kingdom
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Chemistry

Citation Formats

Davis, Ryan A., Drake, Chris, Ippisch, Robin C., Moore, Melissa, and Sutcliffe, Julie L. Fully automated peptide radiolabeling from [ 18 F]fluoride. United Kingdom: N. p., 2019. Web. doi:10.1039/C8RA10541C.
Davis, Ryan A., Drake, Chris, Ippisch, Robin C., Moore, Melissa, & Sutcliffe, Julie L. Fully automated peptide radiolabeling from [ 18 F]fluoride. United Kingdom. https://doi.org/10.1039/C8RA10541C
Davis, Ryan A., Drake, Chris, Ippisch, Robin C., Moore, Melissa, and Sutcliffe, Julie L. Fri . "Fully automated peptide radiolabeling from [ 18 F]fluoride". United Kingdom. https://doi.org/10.1039/C8RA10541C.
@article{osti_1500134,
title = {Fully automated peptide radiolabeling from [ 18 F]fluoride},
author = {Davis, Ryan A. and Drake, Chris and Ippisch, Robin C. and Moore, Melissa and Sutcliffe, Julie L.},
abstractNote = {The biological properties of receptor-targeted peptides have made them popular diagnostic imaging and therapeutic agents. Typically, the synthesis of fluorine-18 radiolabeled receptor-targeted peptides for positron emission tomography (PET) imaging is a time consuming, complex, multi-step synthetic process that is highly variable based on the peptide. The complexity associated with the radiolabeling route and lack of robust automated protocols can hinder translation into the clinic. A fully automated batch production to radiolabel three peptides (YGGFL, cRGDyK, and Pyr-QKLGNQWAVGHLM) from fluorine-18 using the ELIXYS FLEX/CHEM® radiosynthesizer in a two-step process is described. First, the prosthetic group, 6-[18F]fluoronicotinyl-2,3,5,6-tetrafluorophenyl ester ([18F]FPy-TFP) was synthesized and subsequently attached to the peptide. The [18F]FPy-peptides were synthesized in 13–26% decay corrected yields from fluorine-18 with high molar activity 1–5 Ci μmol-1 and radiochemical purity of >99% in an overall synthesis time of 97 ± 3 minutes.},
doi = {10.1039/C8RA10541C},
journal = {RSC Advances},
number = 15,
volume = 9,
place = {United Kingdom},
year = {Fri Mar 15 00:00:00 EDT 2019},
month = {Fri Mar 15 00:00:00 EDT 2019}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1039/C8RA10541C

Citation Metrics:
Cited by: 5 works
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